Where can you find the brake light fuse of a 1990 Cadillac Brougham?

The fuse box location for a 1990 Cadillac Brougham is typically under the hood, on the driver's side (left-hand side in the US). However, there isn't a single "brake light fuse." The brake lights are usually controlled by multiple fuses, and sometimes a relay. The specific fuse(s) and their location within the fuse box will depend on the car's configuration.

To find the correct fuse(s):

1. Consult your owner's manual: This is the best source of information. The manual will have a fuse box diagram showing the location of each fuse and what circuit it protects.

2. Look for a fuse box diagram inside the fuse box lid: Many fuse boxes have a diagram printed on the inside of the cover. This diagram will show the fuse layout and usually indicate what each fuse controls.

3. Check the fuse box carefully: Look for fuses that are labeled as related to the taillights, stop lamps, brake lights, or similar terms.

Because the brake light circuit might be complex, a blown fuse might not be the only cause of malfunctioning brake lights. Consider other possibilities like a faulty brake light switch, wiring problems, or burnt-out bulbs. If you can't find the problem using the fuse box diagram, it's best to take your car to a qualified mechanic.